Correlation between exchange bias and pinned interfacialspins
Journal Article
·
· Physical Review Letters
Using x-ray magnetic circular dichroism, we have detectedthe very interfacial spins that are responsible for the horizontal loopshift in three different exchange bias sandwiches, chosen because oftheir potential for device applications. The "pinned" uncompensatedinterfacial spins constitute only a fraction of a monolayer and do notrotate in an external magnetic field since they are tightly locked to theantiferromagnetic lattice. A simple extension of the Meiklejohn and Beanmodel is proposed to account quantitatively for the exchange bias fieldsin the three studied systems from the experimentally determined number ofpinned moments and their sizes.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Director. Office of Science. Office of Basic EnergySciences
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 887429
- Report Number(s):
- LBNL-53106; R&D Project: A58128; BnR: KC0204016
- Journal Information:
- Physical Review Letters, Vol. 91; Related Information: Journal Publication Date: 2003
- Country of Publication:
- United States
- Language:
- English
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